75253349 has 4 divisors (see below), whose sum is σ = 75794880. Its totient is φ = 74711820.

The previous prime is 75253331. The next prime is 75253369. The reversal of 75253349 is 94335257.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94335257 = 1481 ⋅63697.

It is a cyclic number.

It is not a de Polignac number, because 75253349 - 2²⁰ = 74204773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75253369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270557 + ... + 270834.

It is an arithmetic number, because the mean of its divisors is an integer number (18948720).

Almost surely, 2^75253349 is an apocalyptic number.

It is an amenable number.

75253349 is a deficient number, since it is larger than the sum of its proper divisors (541531).

75253349 is a wasteful number, since it uses less digits than its factorization.

75253349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541530.

The product of its digits is 113400, while the sum is 38.

The square root of 75253349 is about 8674.8688174519. The cubic root of 75253349 is about 422.1906496885.

The spelling of 75253349 in words is "seventy-five million, two hundred fifty-three thousand, three hundred forty-nine".